Improvement in drill-rod gr



T. JOHNSON & H. HANSON. DRILL-ROD GRAPPLING-HOOKS.

N 0. 195,612. Patented Sept. 25, 1e 77.

m 1 m. mwmliw H IIIHIHL" A UNITED STATES PATENT OFFICE.

THOMAS JOHNSON AND HENDRIK HANSON, OF HIGHLAND, MINNESOTA.

IMPROVEMENT IN DRILL-ROD GRAPPLlNG-HOOKS.

Specification forming part of Letters Patent No. 195,612, datedSeptember 25, 1677 application filed June 4, 1877.

To all whom it may concern Be it known that we, THOMAS JOHNSON andHENDRIK HANSON, both of Highland, in the county of Fillmore and State ofMinnesota, have invented certain new and useful ImprovementsinGrappling-Hooks forWell-Borers; and we do hereby'declare that thefollowing is afull, clear, and exact description thereof, which willenable others skilled in the art to which it appertains to make and usethe same, reference being bad to the accompanying drawings, which form apart of this specification, and in which- Figure 1 is a front elevation,showing the tongs open. Fig. 2 is a similar view, showing them closedand Fig. 3 is a side elevation.

Similar letters of reference. indicate corresponding parts in all thefigures.

Our invention consists in the construction and arrangement of a devicefor grappling broken well-augurs, drills, and other articles orimplements which by accident or otherwise have been left at the bottomof drill-holes or wells, substantially as hereinafter more fullydescribed, and pointed out in the claims.

In the drawing, A is aflat bar of iron, having a loop or eye, a, at thetop, and an offset or shoulder, b, about midway.

B B are two parallel iron rods, pivoted in keepers c c d 01, securedupon the front part of the bar A, as shown, so as to enable them tooscillate freely. Rod B' terminates in a curved spiral-twisted jaw, e,having a serrated rim or edge, e,- and rod B terminates inacorresponding but shorterjaw, having a sharp edge, f, curved againstand facing the serrated edge e of rod B.

At the upper ends of rods B B, between the keepers c c and offset h, aretwo projecting perforated arms, g g, g projecting laterally, at rightangles, from B, and g secured in a similar manner upon the top of B.

Through the perforations in arms 91 g passes a wedge-shaped slide, 0,consisting of two converging arms, h h, and a loop or eye, i, the arms hh being united at the bottom by a keeper, It, projecting from which, atright angles, so as to fit into the space between the oscillating rods BB, is a piece, 1, the edge of which rests against and slides upon theinner side of bar A, thereby serving to keep the bottom of slide 0 at asuitable distance from this, so that the ends of the two arms h hforming said slide will project out from bar A, and be just about overthe center of the open space between the jaws e and f.

The operation of this device is as follows: If a drill has been brokenin a well-hole, or if it is desired to remove any object from the bottomof a finished well, the implement is lowered down into it by means of arope or chain, D, secured in the eye a of bar A. After the object to begrappled and pulled out has been reached, the jaws e f are broughttogether around it, so as to grasp and hold it firmly, by pulling acord, E, secured in the eye or loop 0' of slide 0, which, in its upwardtravel, causes the rods B B to partly rotate, by being drawn together bythe slanting arms h h passing through the projecting perforated arms 9g, thereby bringing their jaws together and grasping firmly anythingthat happens to be between them. If, while the implement is beinglowered, it should strike the top of a broken drill or auger left in thehole, then the broken top of this, by striking against the projectingsliding piece Z and pushing slide 0 up, will cause the jaws e f to cometogether automatically, and without the necessity of pulling cord E.

When the object has been grappled in this manner it may readily bepulled out by a Windlass at the top of the well, around which theelevating rope or chain D is wound.

This apparatus is simple in construction, consisting, as it does, of fewparts, and is not, therefore, liable to break or get out of order. It iscertain in its operation if properly managed, and may be used for avariety of purposes besides those for which it is chiefly intended.

Having thus described our invention, we claim and desire to secure byLetters Patent of the United States- The grappling apparatus hereindescribed, consisting of bar A, oscillating rods B B, having jaws of,and slide 0, having eye 11 and sliding piece I, all constructed andcombined to operate substantially in the manner and for the purposehereinbefore set forth.

In testimony that we claim the foregoing as our own we have heretoaffixed our signatures in presence of two witnesses.

THOMAS JOHNSON.

HENDRIK HANSON.

Witnesses:

OLE THoMPsoN, ANTON THOMPSON.

